2066801066 has 16 divisors (see below), whose sum is σ = 3403585440. Its totient is φ = 933469680.

The previous prime is 2066801041. The next prime is 2066801069. The reversal of 2066801066 is 6601086602.

It is not an unprimeable number, because it can be changed into a prime (2066801069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295736 + ... + 302643.

It is an arithmetic number, because the mean of its divisors is an integer number (212724090).

Almost surely, 2^2066801066 is an apocalyptic number.

2066801066 is a deficient number, since it is larger than the sum of its proper divisors (1336784374).

2066801066 is a wasteful number, since it uses less digits than its factorization.

2066801066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598549.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 2066801066 is about 45462.0838281749. The cubic root of 2066801066 is about 1273.7950561109.

Adding to 2066801066 its reverse (6601086602), we get a palindrome (8667887668).

The spelling of 2066801066 in words is "two billion, sixty-six million, eight hundred one thousand, sixty-six".